Which of the following is not a function of glycogen in the body?

Glycogen primarily serves as a critical energy storage molecule in the body, particularly in the liver and muscle tissues. It is comprised of glucose units and can be rapidly mobilized to meet energy demands when necessary. When the body requires glucose, glycogen undergoes a process called glycogenolysis, where it breaks down into glucose for release into the bloodstream to maintain blood glucose levels—a key function.

Additionally, glycogen plays a role in metabolic regulation, enabling the body to manage energy needs during fasting, exercise, and feeding. It helps maintain homeostasis by allowing quick access to stored energy.

Protein synthesis, on the other hand, is primarily the function of amino acids and various proteins rather than glycogen. Glycogen does not contribute directly to the synthesis of proteins in the body. Therefore, stating that protein synthesis is a function of glycogen is incorrect, making it the answer to the question.